Matte and slag separating well



(No MgdeLy 2 Sheets-Sheet 1.

J.. D. DAAVIES. MATTE AND SLAG SPARATING WELL.

No; 542,148. Patented July z, 1895.

INVENTOH W/TNESSES.' @mbe A TTOHNEYS.

(No Model.) Y -2 Sheets-Sheet 2.

J. D. DAVIES.

MATTE AND SLAG SEPARATING WELL.

Patented July 2, 1895.l

/N VEN TOR TTOHNE YS.

i W/TNESSES UNITED STATESV PATENT OFFICE.

Jol-IN D. DAvIEs, or BUTTE, MONTANA.

MATTE AND SLAG SVEPARATING WELL.

SPECIFICATION forming part of Letters Patent No. 542,148, dated July 2,1895.

Application filed September 18, 1894. ySerial No. 523.402. (No model.)

To all whom it may concern.-

Be it known that I, JOHN D. DAVIES, ot' Butte city, county of SilverBow, and StateV of Montana, haveinvented a new and Improved Matte andSlag Separating Vxell, of which the following is a full, clear, andexact description.

The invention consists ot a well provided with two compartments ofdifferent heights connected with each other at or near the bottom, onecompartment being provided with an outlet for the slag and the otherwith an outlet for the matte.

The invention also consists of certain parts and details andcombinations of the same, as

will be fully described hereinafter, and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a perspective View of the improvement with parts broken out.Fig. 2 is a sectional side elevation of the improvement. Fig. 3 is arear end perspective view of part of the improvement; and Fig. 4 is aplan View, partly in section, showing the separating-well in connectionwith the furnace.

The improved matte and slag Separating well is provided with a casing A,made of a suitable material and formed with two compartments B and C,located one alongsidethe other and both preferably lined with iirebrickor other suitable material. The larger and higher compartment B isadapted to receive the molten metal from the tap-hole of the furnace,and the said compartment is provided at its rear end and on the top edgewith a notch D, forming an outlet t'or the slag passing through thenotch upon a suitable spout D for leading the slag to one side ot` thewell. Next tothe notch D is arranged a verticallydisposed slot E,adapted to be closed by a metallic plate or gate F, `held in brackets Gsecured t0 the end of the casing, as is plainly shown in Fig. 3. In thepartition H', between the compartments B and O, is arranged an openingH, located near the bottom of the casing A and serving to conduct thematte from the compartment B to the compartment C,vthe latter beingprovided at its upper end and on the top edge with a matte-dischargenotch J, leading to a suitable spout J for carrying the matte to oneside into a suitable receptacle to be further treated.

It will be observed that the spout J is lo-V cated at a lower level thanthe spout D. The partition H and the lining A are made ot refractorymaterial, such as a composition of one part ot' tire-clay and five partsof quartz.

In the end of the compartment C is arranged a tap-hole I, locatedopposite the taphole H, as is plainly shown in Figs. 1 and 2; and abovethis tap-hole I in the top ot' the end of the compartment C is formed anotch Kfor guiding a bar orother tool to the tap-hole H, to open thesame. when required, and as hereinafter more fully described.

The operation is as follows: The casing A with the tap-holes H and Iclose in the usual manner, andthe slot E, closed by the plate F, isplaced in such a positionnear the furnace U that when the latter istapped then the molten metal from the furnace flows into the compartmentB, with the matte on the bottom and slag on the top. Whenv a Sufficientamount of moltenmetal has accumulated in the compartment B, then thetap-hole H is opened or tapped to permit the matte to flow through thetap-hole H into the compartment C. The lightest portion of the slagiiows out through the spout D', so that an automatic skimming isobtained. After the skimming is over the operator opens the slot E byremoving the plate F to permit the slag to run out of the compartment B.When about eight inches of matte and one inch of slag is left in thecompartment B, then the tap-hole I is opened and the matte and the slagrun out to empty the casing. Now, the door of the furnace will be asnear the head of the Well as possible, so that there will be a distanceof about two and one-halt feet from the discharge-spout of the furnaceto the slag-spout. Having thus fully described my invention, I claim asnew and desire to secure by Letters Patent- A matte and slag separatingwell, provided ment being provided with a matte discharge and atap-hole, substantially as shown and described.

JOHN D. DAVIES.

Witnesses:

WILFRID ST. JEAN, ROBERT ROBINSON.

